Prove that sin²30+cos²60-tan²45=-1/2
Answers
Answered by
1
Step-by-step explanation:
Sin^2 30°+cos^2 60°-tan ^2 45°
=(1/2)^2+(1/2)^2-(1)^2
=1/4+1/4-1
=2/4-1
=1/2-1=1-2/2=1/2.
Similar questions